Conclusions
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1.
The production scheme developed by us made it possible to obtain austenitic stainless steels 01Kh17AN14M2 and 01Kh18AN11 with a very low carbon content (0.004–0.006%) and an increased nitrogen content (0.38–0.40%).
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2.
The method of solid-phase decarburizing and alloying with nitrogen provides improved structural strength and operating properties for austenitic high-chromium steels; in particular, σf = 780 MPa and 800 MPa, σ0.2 = 460 and 480 MPa, δ5 = 52.7 and 49.0% for steels 01Kh18AN11 and 01Kh17AN14M2, respectively. The set of high strength and ductility properties obtained for the steels provides increased life for sylphon bellows prepared from them by a factor of 2.4–3.8 compared with that for bellows made of standard steel 08Kh18N10T.
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Dnepropetrovsk Metallurgical Institute. I. I. Lepse Production Unit "Znamya Truda," Leningrad. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 3, pp. 41–42, March, 1985.
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Rabinovich, A.V., Zaslavskii, Y.B., Taras'ev, Y.I. et al. Improvement in the structural strength of austenitic stainless steels by solid-phase decarburizing and impregnation with nitrogen. Met Sci Heat Treat 27, 216–217 (1985). https://doi.org/10.1007/BF00699656
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DOI: https://doi.org/10.1007/BF00699656